一种新型生物絮凝剂FM-2絮凝特性及稳定性考察  

Evaluation of Flocculating and Stability Characteristics of Bioflocculant FM-2

作　　者：李春玲[1] 周集体[1] 金若菲[1] 王竞[1] 

机构地区：[1]大连理工大学环境学院,辽宁大连116024

出　　处：《环境科学与技术》2012年第12期10-12,26,共4页Environmental Science & Technology

基　　金：博士后科学基金(200902538);国家自然科学基金(50808029);国家"863"计划项目(2009AA062906)

摘　　要：文章对絮凝剂FM-1的储存稳定性以及絮凝活性分布进行了考察,发现其絮凝活性物质主要分布于上清液之中,加之储存稳定性较差的特点,为絮凝剂FM-2的制备提供了前提。絮凝剂FM-2的最佳絮凝率高达99.21%,其储存时间较长,30 d内其絮凝率可保持在90%以上;而且还具有较好的热稳定性,当加热温度从70℃升高到100℃,其絮凝率均保持在95%以上。Storage stability and flocculating distribution of bioflocculant FM-1 were investigated. It showed bad storage stability and the flocculating activated substance was existed in the upper liquid, which would provide basis for the preparation of bioflocculant FM-2.The highest flocculating rate of FM-2 was 99.21%, also it showed well storage stability, and the flocculating rate was above 90% within thirty days. When the heated temperature varied from 70 ℃ to 100 ℃, 95% flocculating rate was kept, indicating that it was fairly heat-resistant.

关 键 词：絮凝剂 污泥 絮凝率 

分 类 号：X703.5[环境科学与工程—环境工程]